CIO Releases “SMARTCOBY Ex04 Wireless2.2 CABLE SS5K” Mobile Battery with Flame-Resistant Semi-Solid State Battery and Detachable USB-C Cable

CIO Launches SMARTCOBY Ex04 Wireless2.2 CABLE SS5K (White) Mobile Battery
Product Features
Product Specifications
Availability
About CIO Corporation

CIO Launches SMARTCOBY Ex04 Wireless2.2 CABLE SS5K (White) Mobile Battery

CIO Corporation has announced the release of the “SMARTCOBY Ex04 Wireless2.2 CABLE SS5K” mobile battery in white. This new model, priced at 7,130 yen (tax included), became available on June 19, 2026, via Amazon.co.jp, Rakuten’s CIO official online store, select electronics retailers, and CIO STORE direct stores. The black color variant was released earlier, on March 27, 2026.

This mobile battery features a slim profile of approximately 14mm, offering up to 25W wireless charging via Qi2.2 and up to 20W wired output. With a 5000mAh capacity, it integrates semi-solid state battery cells designed for enhanced flame resistance, a detachable USB-C cable, and full pass-through charging. Its design emphasizes portability for smartphones, coupled with safety and practicality for everyday use.

Product Features

Semi-Solid State Battery Cells for Enhanced Safety

The SMARTCOBY Ex04 Wireless2.2 CABLE SS5K utilizes semi-solid state battery cells, which reduce the amount of electrolyte, a potential cause of ignition. This design is complemented by “NovaCore C2” heat dissipation technology and “NovaSafety S2” thermal detection and output control. The battery continuously monitors its temperature, automatically adjusting power output under high loads to manage heat, aiming for safer and longer-lasting use. (Note: “Semi-solid state” is an operational term based on the company’s definition.)

Qi2.2 Wireless Charging up to 25W

Supporting MagSafe-compatible smartphones, the device provides up to 25W wireless charging under the Qi2.2 standard. This combines the convenience of cable-free charging with high power output. For example, a 30-minute charge is designed to bring an iPhone 17 Pro to 35% capacity with Qi2.2 charging.

Stable and Fast Wired Charging up to 20W

The built-in USB-C cable allows for wired charging with an output of up to 20W. This method generally results in less energy loss compared to wireless charging, providing a more stable and faster charging experience. A 30-minute wired charge is expected to bring an iPhone 17 Pro to 48% and a Google Pixel 10 Pro to 37%, making it suitable for situations requiring quick power-ups.

Detachable USB-C Cable for Smart Portability

Equipped with an approximately 21cm long built-in USB-C cable, the battery ensures convenient charging without needing to carry an extra cable. The cable is also detachable, allowing for replacement in case of damage. This design maintains a sleek appearance while providing a cable when needed, combining portability with practicality.

5000mAh Capacity in a Slim Design

The mobile battery offers a 5000mAh capacity while maintaining a compact size of approximately 100 x 70 x 14mm and a weight of about 151g. Its dimensions are designed to align with the width of an iPhone, ensuring it fits comfortably in hand when attached to a smartphone, facilitating easy operation.

Product Specifications

Model Number: CIO-MB20W2C-SS5K-EX04
Internal Battery: 2500mAh x 2pcs (Total 5000mAh/18.5Wh)
Weight: Approx. 151g
Product Size: Approx. 100 x 70 x 14mm
Ports: USB-C x2
Charging Time (0-100%): Approx. 90 minutes (may vary depending on environment)
Input (USB-C built-in cable/USB-C): 5V=3A/9V=2.22A/12V=1.67A (Max 20W)
Output (USB-C built-in cable/USB-C): 5V=3A/9V=2.22A/12V=1.67A (Max 20W) / PPS 5-11V=2A (Max 22W)
USB-C Built-in Cable + USB-C Total: 15W (5V=3A)
Wireless Output: Max 25W
Supported Fast Charging Standards: Qi2.2 (25W) / USB Power Delivery 3.0
Cycle Count: Approx. 400 times
Colors: Black, White
Accessories: Instruction Manual

Availability

The SMARTCOBY Ex04 Wireless2.2 CABLE SS5K (White) is available for purchase at:

Amazon:
- Amazon | CIO モバイルバッテリー半固体電池小型軽量 Qi2.2 ワイヤレス充電＆ケーブル内蔵薄型 5000mAh 25W出力 SMARTCOBY Ex04 Wireless2.2 CABLE SS (ホワイト) | CIO | モバイルバッテリー
  CIO モバイルバッテリー半固体電池小型軽量 Qi2.2 ワイヤレス充電＆ケーブル内蔵薄型 5000mAh 25W出力 SMARTCOBY Ex04 Wireless2.2 CABLE SS (ホワイト)がモバイルバッテリースト...
  www.amazon.co.jp
- A 10% discount is available with promotion code 652Q2IYX from June 18, 21:00 to June 26, 23:59.
Rakuten:
- 【楽天市場】CIO モバイルバッテリー半固体電池小型軽量 Qi2.2 ワイヤレス充電＆ケーブル内蔵薄型 5000mAh 25W出力 iPhone 17 16 15 Pro / Pro Max Pixel10 Galaxy S26 SMARTCOBY Ex04 Wireless2.2 CABLE SS5K モバイルバッテリー小型モバイルバッテリー軽量燃えにくい：CIO 楽天市場店
  吸着充電対応！ケーブル内蔵のモバイルバッテリーモバイルバッテリー小型モバイルバッテリー軽量燃えにくい。CIO モバイルバッテリー半固体電池小型軽量 Qi2.2 ワイヤレス充電＆ケーブル内蔵薄型 5000mAh 25W出...
  item.rakuten.co.jp
- A 10% discount launch coupon is available. Get the coupon at https://coupon.rakuten.co.jp/getCoupon?getkey=TTBDQi1YVUpTLVlIV0wtNFlTTw–&rt= using coupon code XUJS-M0CB-YHWL-4YSO from June 18, 21:00 to June 26, 23:59.

About CIO Corporation

Established in 2017, CIO Corporation operates under the philosophy of “creating an exciting future with multi-functional and cutting-edge technology.” The company focuses on manufacturing original products, primarily smartphone-related items such as chargers and mobile batteries, with a unique story and passion behind each product. CIO aims to deliver the excitement of innovative and highly functional gadgets to its customers.

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